OBD Guide

B00A0

Occupant Classification System

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–167 (est.)

Symptoms

  • Airbag light is on
  • The system does not detect the presence of a passenger
  • Airbag does not deploy when required

Causes

  • Under seat weight sensor malfunction
  • Wiring harness damage
  • Problems with the OCS control unit
  • Short circuit in the sensor circuit

How to Fix

  1. Check the weight sensor under the seat
  2. Inspect the wiring harness for damage
  3. Read trouble codes using an OBD-II scanner
  4. If necessary, replace the sensor or wiring harness
  5. Reset the error and check the system operation

Related codes

Error B00A0 by Vehicle Brand